Process for the nuclear chlorination of toluene

Details Process for the nuclear chlorination of toluene Process for the nuclear chlorination of toluene

1982-04-15

1984-04-24

Warren, Charles F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 1712

Patent

active

044449836

ABSTRACT:
Para-chlorotoluene is prepared selectively at high yield by nuclear chlorination of toluene, in the presence of a Lewis acid catalyst, and a co-catalyst comprising at least one compound selected from the group consisting of phenoxthine derivatives and highly chlorinated phenoxthine derivatives obtained by chlorinating said phenoxthine derivatives at higher degree, said phenoxthine derivatives being represented by the general formula of: ##STR1## wherein R represents methyl group or groups at the position-1 and/or position-3,

REFERENCES:
patent: 4190609 (1980-02-01), Lin
patent: 4289916 (1981-09-01), Nakayama et al.

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